E-Stone Batteries

Our product combines an easy innovative fabrication method and uses a patented electrode formulation, making it possible to utilize the tremendous potential of iron. There is still nickel in our first nickel-iron batteries. But in terms of cost not more than there is lead in a lead-acid battery. The cycle life is already proven to be several times longer than lead-acid batteries and the energy density is 2-3 times greater. In future, we aim to replace the nickel for much cheaper variants (e.g. air electrodes)

The abundance, direct availability and global utilization of iron makes it ideally suited as the affordable clean-energy storage material, enabling energy storage for everyone, everywhere. Just take a look around you, from building materials to your body, the world runs on iron!